Molding-press.



Patented Feb. 6, |900. E. H. CALLAWAY.

MOLDING PRESS.

(Application filed Aug. 1 5, 189B.

3 Sheets-Sheet l.

No. 642,58l.

(No Model.)

No. 642,581. Patented Feb. 6, |900.

E. H. CALLAWAY.

MULDING PRESS.

(Application led Aug. 15, 1898.)

3 Sheets-Sheet 2.

(No Model.)

WITNESSES: INVENTRS 6mm/ML H ATTORNEY TH: Nnnms Fz'rsns co. Pncroumo..wAsnmGToN n c.

Patented Feb. 6, |900.

YY. w AS.1, S5 wp... un LPM Lad e mmm n n.

3 Shaets-Sheat 3.

(No Model.)

/M @E w ATToRm-:Yeny

WITNESSES:

smo STAT-'es PATENT OFFICE" DYVARD H. OALLAWAY, OF NEV YORK, N. Y.,ASSIGNOR OF ONE-HALF TO GEORGE W. OOPLAND, OF SAME PLACE.

MoLDlNc-PRESS'.

SPECIFICATION forming part of Letters Patent ivo-642,581, date nebruaye, 1906.

Application filed August 1.5, 1898. Serial No. 688,575. (No model.)

To @ZZ whom it' may concern:

Be it known that LEDWARD H. CALLAWAY, a citizen of the United States,residing in New York, (Rosebanlg) in the county of Richmond, State ofNew York, have invented a new and useful Improvement in Molding-Presses,of

which the following is a specification, reference being had to theaccompanying drawings, which form' a part thereof.

My invention relates to presses for molding bricks or similar articlesout of stiff-tempered clay or any suitable material. It is especiallydesigned for use in the molding of first-class front-bricks orfire-bricks, although it can also be employed to advantage in moldingother kinds of bricks, as well as other articles.

Some of the objects of my invention are to provide a machine that iscapable 'of being operated by power and that will produce a pressedbrick of the iirst quality from stidtempered clay, such as is adaptedfor use as front-bricks or fire-bricks, at a single operation; toproduce four or more bricks or other articles at a single operation ofthe press; to produce bricks or other articles having a complete andsubstantially perfect form, the bricks or other articles containing auniform amount of clay and being uniform in size and density-in otherwords, the product of the machine being at all times uniform andregular; to provide a machine that will be compact in construction andsimple in operation; to secure economy by minimizing the amount of themachinery required and by reducing the labor and time necessary to themanipulation of the same, and to produce a brick or other article whichis superior in quality and general characteristics to the bricksmanufactured by machines previously in use.

My invention is fully shown in the accompanying drawings, in which-Figure 1 is a longitudinal vertical section of the machine. Fig. 2 is across-section on the line 2 2 of Fig. l. Fig. 3 is a front or end viewof the machine, not showing, however, the receiving-table. Fig. 4 is ahorizontal section of the compressing part of the machine, taken on theline 44 of Fig. l and showing a top View of the delivery-frame.

Fig. isatop viewof the reciprocating knives 5o and cross-heads. Fig. Gisa side View of the knife as shown in Fig. 5. Fig. 7 is a front view oftheforming-die and regulating-block which are connected with thefeed-cylinder. Fig. S isa horizontal section on the line 8 8 55 of Fig.7. Fig. 9 is a top view of the moldboX, showing the reciprocating knivesin section. Fig. l0 isatop view of the filling-block of one of theplungers. Fig. 1l is a longitudinal or vertical section of one of theplungers. 6o

Similar numbers refer to similar parts in the different figures.

Myinvention consists, first, in the combination, in such a press, of amold-box having one or more compartments or molding-chambers having theshapeof the brick or other article to be formed,one or morereciprocating knives movable with reference to the other parts of themold-box or chamber and adapted to cut off a block of material in eachcompartment 7o or molding-chamber and to form. one side of eachcompartment or molding-chamber and then to be drawn away from the othersides of the compartment or box, suitable devices for compressing theblock or blocks in the mold-box, and a suitable feeding device to feed abar of material into the mold-box or if the mold-box contains more thanone compartment to feed a bar of the material into each compartment.

The invention also consists in the combination, with the other devicesabove recited, of reciprocating plungers, one or more on each side ofthe mold-box, for compressing between them the material in thecompartment or compartments ofthe mold-boX,whereby the brick or otherarticle is compressed from both sides and a convenient meansis providedfor removing the block from the mold after it has been compressed.

My invention further consists in providing the mold-box with a pluralityof long compartments and in combining with it a plurality ofreciprocating knives so arranged as to cut the bar of material in eachlong compart- 95 ment into a plurality of blocks and to form one side ofeach of the smaller compartments or molding-chambers and a feedingdevice which is adapted to feed a. bar of material i into each one ofthe long compartments of the mold-box.

My invention also consists in the combina tion, with some or all of thedevices above mentioned, of a nishing-die ou the discharge side of the mold-box, which is adapted to trim or finish olf the block as it isexpelled from the mold-box after being compressed. This finishing-dieshould have as many openings or passages las there are compartments inthe mold-box, so as to trim or finish olf each block as it is expelledtherefrom.

My invention also consists in the special construction of the mold-boxhereinafter more fully described and in the combination of thisparticular form of mold-box with the reciprocating plungers and knivesalready referred to.

My invention also consists in the particular construction of thereciprocating knives and the devices for supporting and operating thesame.

My invention also consists of the special construction of the plungerwhich is used for compressing the material.

My invention also consists in the combination of plungers having thespecial construction hereinafter more fully described with some or allof the other devices above mentioned.

My invention also consists in the combination, with a delivery-f rameand the other necessary elements, of reciprocating plungers forcompressing a block or blocks, the plunger or plunger-s on the dischargeside of the moldbox being adapted to pass through the delivery-frame, asa result of which the plungers after compressing the block or blocksforce the block or blocks into the delivery-frame, by means of which theblocks are carried away from the mold-box to a point where they aredischarged from the machine. lVhen my complete invention is employed, Iprovide the delivery-frame with an'oiling or lubricating roller having adiameter substantially equal to the distance between the compressingplungers at the completion of their stroke and when thedelivery-frame is moved, so as to carry the block or blocks away fromthe plungers, whereby the lubricating-roller oils or lubricates thefaces of the pluugers while the delivery-frame is being moved from onep0- sition to the other.

My invention also consists in the combination, with the delivery-frame,of a receivingtable onto which the delivery-frame is adapted to carry ordeliver the block or blocks and means for raising or lowering thereceivingtable.

My invention also consists in providing the feed-cylinder with aforming-die having a plurality of openings and having a regulating-blockprovided with depending portions adapted to extend into these openingsand means for adjusting the regulating-block so as to regulate the sizeof thc openings.

My invention also consists in certain other, features of constructionand combination of parts hereinafter described and claimed.

Referring to the drawings, 1 is the bedplate of the machine. p

2 2 are posts resting on the bed-plate and supporting at their upperends the feed-cylinder 3 and its connected parts. y

4 is a hopper which is placed over a suitable opening inthefeed-cylinder and is preferably made larger at the lower than at itsupper end, as shown in Fig. 1.

5 is a plunger which is adapted to work back and forth in thefeed-cylinder. This plunger is preferably made hollow and is made ofsuch a length that when it is in its forward position it extendsbackward beyond the opening from the hopper, so as to shut off thatopening, and thereby prevent any clay or other material from droppinginto the feedcylinder behind the plunger. It is manifest that instead ofmaking the entire plunger of such a length the plunger could be made ofordinary length and provided at its upper side with a hood extendingbackward, which would operate in the same manner and would practicallyamount to merely cutting away the lower half of the plunger toward therear end. The plunger is connected by means of a suitable piston-rod 6with a piston '7 in the hydraulic cylinder 8. This rod passes throughthe head 9 of the hydraulic cylinder and is provided at that point witha suitable gland and stuffing box or is otherwise suitably packed. Therear head of the plunger 5 is placed a short distance forward of therear end of the plunger in order to provide a recess into which thegland can project. The forward end of the feed-cylinder is provided withinclined or sloping walls 10 to guide the material into the openings ofthe forming-dic.

11 is the forming-die, which is attached to the forward end of thefeed-cylinder in any suitable manner. In the form shown the forming-dieisA provided with a flange on its under side, which is adapted to bebolted against the end of the feed-cylinder. The construction of theforming-die is shown in Figs. 1, 7, and S. The forming-die is providedwith as many discharge-openings as there are long compartments in themoldbox, and these openings are placed so as to be in line with saidcompartments, so that when the bars of material are forced through theopenings of the forming-die they will be forced into the compartments ofthe moldboX. In the form of die shown there are two such openings, whichare separated from each other by the intervening wall or septum 12. Thiswall is beveled at its rear end at 13, so as to form a cutting edge atthat point, and thereby to readily divide the clay or other materialinto two streams or bars.` 14C is a regulating-block which consists ofthe crossbar 15 and the depending portions 16. There are as manydepending portions as there are openings in the forming-die, and thesede IOO IIO

pending portions are adapted to enter and to nicely fit these openings.The depending portions are carried and supported by the crossbar 15.Suitable means are provided for adjusting the regulating-block, so ast-o regulate the size of the openings in the die..l In the form shown,17 17 are screw-bolts which are fastened to the forming-diel and whichpass through holes in the projecting ends of the cross-bar 15., Thesebolts are provided with the nuts 18, by meansof which theregulating-block can be raised or lowered on these bolts and fastened inany desired position. The ldepending portions of the regulatingblock areprovided with shoulders, as shown in Fig. 8, which bear againstcorresponding shouldersin the forming-die and which enable the dependingportions 16 to resist the pressure of the material upon their rear faceswhen the material is being pressed out from the feed-cylinder.

Referring to Figs. 1, 2, and 3, 19 is a hydraulic cylinder which isprovided with the piston 20. 2l 21 are piston-rods, four in number,connected with the piston 2O and carrying at theirlower ends thefourreciprocating plungers 22 22. The piston-rods 21 pass through thelower head of the cylinder and are provided at that point with anysuitable form of packing. 23 is another hydraulic cylinder at the underside of the machine, provided with a piston 24, with which are connectedthe piston-rods 25. These rods pass through the upper head of thiscylinder, at which place they are provided with any suitable form ofpacking. The upper ends of rods 25 carry the lower reciprocatingplungers 6l. In the particular form of machine shown in the drawingsthere are four of these lower plungers corresponding with and operatingin connection with the four upper plungers 22. These plungers may beconstructed in any suitable manner; but when my complete invention isemployed I construct the plungers as shown in Figs. 2, 10, and l1. Theplunger is provided with a recess or cavity in its middle portion andwith perforations leading into this recess from the face of the plunger,whereby air can pass back and forth through the perforations into andfrom the recess for the purposes hereinafter explained, and any clay ormaterial that is forced through the perforations can be removed, throughor by means of the recess in the middle portion. As shown,the plungerconsists of three partsthe die 26, the Afilling-block 27, and theflangeplate 2S. The die is made of steel or any suitable material and isprovided with the perforations 29. The filling-block is provided with arecess 30,' which runs the length of the filling-block, as shown in topor plan view in Fig. 10.' This recess is provided with offshoots orbranch recesses 3l. The perforations in the die-plate open into therecesses 30 and 3l, as shown. The [lange-plate is screwed or otherwisesuitably fastened to the piston-rod 25. The three parts of the die arethe mold-box frame.

by bolts, the heads of which are countersunlcl The clay or othermaterial which is compressed in such a machine always contains a certainamount of air. It is important vto provide some means of escape for thisair when the material is subjected to great compression. Theperforations 29 in the die-plate afford means for the escape of thisair. The air passes through the perforations into the recesses 30 and 31and escapes at the mouth of the recess30 at the end of thefilling-block. If this air were not permitted to escape, it would be aptto be entrapped or caught in the body of the block or brick, and therebyto cause airholes. Furthermore, when a brick having such air entrappedis burned in the kiln the entrapped air is apt to force apart themolecules of the brick and cause imperfections therein. Anotheradvantage resulting from the use of these perforations is that after thematerial has been compressed it is apt to cling to the face of the dieand when the plunger-s are drawn away from the pressed block or when theblock is forced oft' the face of the plunger some of the material islikely to adhere to the die, thereby making the brick imperfect and alsointerfering with the operation of the plungers. It is important at thistime to provide some means whereby air can gain access to the differentpoints of the face of the plunger, and such means are supplied by theperforations 29. The air passes through the recess 30 and through theperforations and obviates any tendency to the formation of any vacuum onthe face of the die when the block is removed therefrom. By employingthe simple means referred to if any material is forced through theperforations 29 it can easily be removed through the recess 30.

32 32 are side plates or struts which rest at their lower ends on theupper surface of the lower cylinder 23 and at their upper ends carry orsupport the cylinder 19,*as clearly shown in Fig. 2. There are two ofthese struts on each side of the machine. (See Fig. 4.)

33 33 are tie-rods which bind the upper and lower cylinders together.

34 is a flange (see Fig. 2) projecting inwardly from the struts andserving to support This frame consists of the side plates 35 and thecross-pieces 36, these parts being all made, preferably,in a singlecasting. This frame rests upon the flanges 34, and the side plates 35are bolted or otherwise suitably fastened to the struts 32.

37 is a finishing-die which rests on the moldboX frame, as shown inFigs. 1 and 2. This finishing-die is made of steel or other suitablematerial and is provided with as many openings as there are compartmentsin the moldboX, and these openings are placed immediately below thecorresponding compartments of the mold-box, as a result of which whenthe compressed blocks are forced out from or expelled from the mold-boxthey are trimmed IOO ITO

or finished by this finishing-die, and thereby made of uniform andperfect size and shape. In the form shown in the drawings there are fourcompartments shown in the mold-box, andthe finishing-die is thereforeprovided with four openings formed by the sides and ends and thecross-bar in the middle. (See Fig. l.) The end of the finishing-dienearest the feed-cylinder and the cross-piece in the middle are beveledon their upper or rear edges, so as to fit and receive the beveled edgesof the reciprocating` knives to bcfhereinafter described. Thefinishing-die is fastened in place on the mold-box frame in any suitablemanner.

The mold-box 3S rests on top of the finishing-die and is preferablydoweled to the finishing-die, although any other suitable means offastening these parts together can be employed. The mold-box consists ofthe two side plates 39, the central partition 40, and the end plate 4l.The end plate 4l is preferably fastened to the side plates and thecentral partition by a dovetailed joint, as shown, as it is desirable tomake a very firm and tight joint. This mold-box is thus made to containtwo long compartments adapted to receive two long bars of material fromthe feed-cylinder. The mold-box is' divided into a plurality ofcompartments-that is to say, four in the particularform shown in thedrawings*- each compartment having the shape of the brick or otherarticle to be formed by means of the reciprocating knives 42 42. Theseknives are adapted to cutoff as many blocks of material as there arecompartments in the mold-box, and each knife forms one side of itscompartment. In the form shown in the drawings the knives at the middleof the moldbox serve as the intervening walls between the front and rearcompartments. The construction of the knives is shown in Fig. There aretwo sets of knives, each set containing two knives. These two knives aresupported from and carried by a cross-bar 43. They mayT be considered asa single knife with two blades or cutting portions. The two cross-bars43 are supported by the cross-heads 44, one at each end. Thesecross-heads are connected with the lower part of the pistonrods 45.These rods are connected with the pistons 46 in the auxiliary hydrauliccylinders 47. (See Fig. 2.) One of the cross-bars 43 is reciprocated upand down immediately to the rear of the rear struts 32. The othercross-bar 43 passes between the rear and the forward struts. The knives42 are beveled at their lower ends, so as to form a cutting edge, andare adapted to fit the beveled upper ends of the finishing-die. Theknives 42 work in grooves in the side pieces 39 and the middle partition40 of the mold-box, as shown in Fig. l. The middle partition of themoldbox, immediately under the forward knife, is slotted, as shown, forhalf its depth, as in Fig. 2, so that the bar 43 passes down into thisslot, as a result of which the slot between the knives slides over themiddle portion and makes what is called a half-and-halfjoint betweenthese parts. This is true of both of the double knives. The knives arerecipro- Vcated by means of the pistons 4G and auxiliary cylinders 47,these auxiliary cylinders being carried by the upper main cylinder 19.

Referring to Figs. l and 4, 4S is the deliveryframe. This frame isprovided with as many compartments as there are blocks to be molded oras there are compartments in the moldboX. In the form shown thedelivery-frame is provided with four such compartments, each one beingadapted toreceive one of the four bricks to be molded in each operationof the press. 49 are angle-irons bolted onto the struts of the machine.These angle-irons support friction-rollers 50,three on each side of themachine. The delivery-frame is provided with a flange 5l on each side,(see Fig. 4,) each flange adapted to ride on the frictionrollers. 52 isa lubricating or oiling roller which is mounted so as to revolve inbearings carried at the rear end of the delivery-frame. The roller ispreferably made of wood and is covered with sheepskin, with the woolside out, or other suitable material for absorbing oil and applying itto the surface of the dies on the com pression-plungers. 53 is a troughfor holding oil or a suitable lubricant. This trough is provided withperforations through which the oil can drop down upon the roller whenthe roller is in its inner position. The roller is made of a diameterequal to the distance between the plungers at the time when thedelivery-frame is moved forward, so as to carry the blocks away from theplungers and deliver them onto the receiving-table. As a result of this,when the delivery frame is moved forward the lubricating-roller at thesame time lubrcates the faces of the upper as well as the lowerplungers. It does this both in its forward and its rearward movement.The delivery-frame-is connected, by means of the piston-rod 54, with thepiston 55 in the hydrauliccylinder 5G, which is supported on the underside of the feed-cylinder of the machine. It will be seen that the lowerplun gers are adapted to pass through the compartments of thedelivery-frame when it is in its rear position and that the compressedblocks are forced from the mold-box by the action of the plungers intothe delivery-frame, so that when the delivery-frame is moved forward itwill carry the blocks away from the discharge-opening of thefinishing-die or mold-box.

Referring to Fig. l, 57 is a receiving-table which is adapted when inits highest position to be substantially on a level with the lower edgeor surface of the delivery-frame, so that when the delivery-frame ismoved forward it will pass onto the receiving-table and will push thecompressed blocks over the surface of that table. This table may beoperated in any suitable way by foot-power or by a counterbalance or byhydraulic pressure. The

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latter form of operating mechanism is shown in the drawings, Fig. 1, inwhich 58 is the piston-rod supporting the table at its upper end andconnecting at its lower e'nd with the piston 59, working in thehydraulic cylinder 60.

I have described this machine as operated by hydraulic pressure. It ismanifest that steam or any other suitable source of power may beemployed.

The operation of my improved machine is as follows: The hopper of thefeed-cylinder is kept continuously supplied with clay or whatevermaterial is to be used. When the piston is drawn back, this materialfalls into the feed-cylinder in front of the piston. The piston is thenmoved forward and the material is forced through the openings of all theforming-dies, which have been regulated in size by means of theregulating-block. A bar of material is thereby fed into each longcompartment of the mold-box. Before the material is fed into themold-box the lower plungers are raised to their highest position, sothat they have passed through the deliveryframe and finishing-die andtheir upper surfaces are on a level with the upper end of thefinishing-die, thereby forming the bottom of the mold-box. When the longcompartments of the mold-box have been supplied with the bar ofmaterial, the reciprocating knives 42 are forced down into the mold-box,so as to cut the bars of material into four blocks, the knivesthemselves dividing the mold-box into four compartments having the shapeof and being just iilled by these four blocks. The upper plungers arelthen forced down until they come into contact with the blocks, and theyoperate at first to force the blocks down a short distance in themold-box. At the same time the lower plungers are forced down slightlybelow the upper edge of the iinishingdie. Then pressure is admitted tothe lower main cylinder and the blocks are compressed on both sidesbetween the upper and lower plun gers, the lower plungers being forcedup again to their highest position. Then the pressure is reversed on thepiston in the lower cylinder, as a result of which the upper plungersforce the clods or compressed blocks out of the mold-box and through thefinishingdie into the delivery-frame. The lower plungers have in themeantime reached their lowest position, in which their upper surfacesare substantially on a level with the lower edge of the delivery-frame.As the blocks are forced through the finishing-die this die trims offtheir edges or rough surfaces and gives them a-perfect form. The upperplungers are brought down to a position a little above the upper surfaceof the delivery-frame and at a distance from the lower plungerssubstantially equal to the diameter of the lubricating-roller?. Thedelivery-frameis then forced forward, so as to carry the bricks onto thereceiving-table. As the frame moves forward the lubricating-roller rubsover the surface of both the upper and lower dies and thoroughlylubricates them. The receivingtable is then lowered, so that the bricksdrop out of the compartments in the deliver 1- frame, after which theframe is drawn back into its original position. The bricks are removedfrom the receiving-table, after which the receiving-table is raised toits highest position, so as to be again ready to receive the neXt lot ofbricks. The upper and lower plungers are then raised to their highestposition and the machine is now ready for the second operation.

Many advantages are secured by my invention, some of which are asfollows: This machine makes a pressed brick suitable for use as a frontbrick or fire-brick of superior quality at a single operation. The usualmethod heretofore known of making this class of bricks has been to makea rough brick in one machine and then to re-press it in a secondmachine. I accomplish these results in a single operation. Great economyis secured through the saving of machinery, labor, and time. The machineis very compact in construction and is easily manipulated. It is verydurable and is not likely to get out of order. It can be operated at ahigh rate of speed and is capable of producing a very much larger numberof bricks in a given time than any of the machines heretofore used. Thebrick is given a complete and perfect form and is very accuratelymolded. Another advantage is that the bricks contain a uniform amount ofclay and are uniform in size and density, thus affording a uniform andregular product. The size of the bricks can be varied and can be easilyand accurately regulated. The reciprocating plungers operate in asuperior manner, as already explained.

It will be understood that the reciprocating knife is not a part of themold-box proper, but merely supplies the place of or acts as one side ofthat box when it has been forced down and made to cut off a block of thematerial. In the claims where the combination of the reciprocating knifeand the mold-box, either with or without other elements, is claimed themold-box refers to the mold-box proper, not including the knife.

What I claim as new, and desire to secure by Letters Patent, is p 1. Ina press for molding bricks or similar articles, the combination of amold-box having the shape of the article to be formed, a reci procatingknife adapted to cut off a block of the material and to form one side ofthe moldbox and then to be drawn away from the other sides of the box,devices for compressing the block in the mold-box and a feeding deviceto feed a bar of material into the mold-box.

2. In a press for molding bricks or similar articles, the' combinationof a mold-box having the shape of the article to be formed, areciprocating knife adapted to cutoff a block of the material and toform one side of the moldbox and then to be drawn away from the otherside of the box, reciprocating plun gers for IOO IIO

compressing between them the material in the mold-box, and a feedingdevice to feed a bar of material into the mold-box.

3. In a press for molding bricks or similar articles, the combination ofa mold-box having a plurality of compartments each having the shape ofthe article to be formed, one or more reciprocating knives, adapted tocnt off as many blocks of material as there are compartments in themold-box and to form one side of each compartment, devices for com-upressing the blocks in the mold-box, and a feeding device to feed a barof material into each compartment.

-l-. In a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of compartments each having the shapeof the article to be formed, one or more reciprocating knives, adaptedto cut off as many blocks of material as there are compartments in themold-box and to form one side of each compartment, reciprocatingplungers for compressing between them the blocks in the severalcompartments of the mold-box, and a feeding device to feed a bar ofmaterial into each compartment.

5. In a press for molding bricks or similar articles, the combination ofa mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cnt the bar Vof material in each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, and devices for compressing the blocks in themold-box.

(5. In a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, devices for compressing the blocks in themoldbox, and a feeding device to feed a bar of material into each longcompartment, substantially as set forth.

7. In a press for molding bricks or similar articles, the combination ofa mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to eut the bar of material in each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, reciprocating plungers for compressing betweenthem the blocks in the several compartments of the mold-box, and afeeding device to feed a bar of materialinto each long compartment,substantially as set forth.

8. In a press for molding bricks or similar articles, the combination ofa mold-box having the shape of the article to be formed, a reciprocatingknife adapted to cut off a block of the material and to form one side ofthe mold-box, reciprocating plungers for compressing between them thematerial in the mold-box, a finishing-die on the discharge side of themold-box adapted to finish off the block as it is expelled from themold-box, and a feeding device to feed a bar of material into themold-box.

9. In a press for molding bricks or similar articles, the combination ofa mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cnt the bar of materialin each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller. compartments, reciprocating plungers for compressingbetween them the blocks in the several compartments of the mold-box, afinishing-die on the discharge side of the mold-box, having as manyopenings as there are compartments in the mold-box, and adapted tofinish oif each block as it is expelled from the mold-box, and a feedingdevice to feed a bar of material into each long compartment,substantially as set forth.

l0. In a press for making bricks or similar articles, the combination ofthe mold-box 38,

consisting of the side pieces 39, the middle partition 40, and the endpiece atl, theknives 42, adapted to slide in grooves in the side piecesand middle partition, means for operating the knives, and reciprocatingplungers above and reciprocating plungers below the mold-box, adapted tocompress between them the blocks in the several compartments of themold, and means for operating the plungers, substantially as set forth.

11. In a press for making bricks or similar articles, the combination ofthe mold-box 3S, consisting of the side pieces 39, the middle partitiona0, and the end piece 4l, the knives 42, adapted to slide in Vgrooves inthe side pieces and middle partition, means for operating the knives,and reciprocating plungers above and reciprocating plungers below thcmold-box, adapted to compress between them the blocks in the severalcompartments, means for operating the plungers, and a feeding device tofeed a bar of materialinto each long compartment, substantially as setforth.

l2. In a press for making bricks or similar articles, the combination ofthe mold-box 38, consisting of the side pieces 39, the middle partition40, and the end piece 4l, the knives 42, adapted to slide in grooves inthe side pieces and middle partition, means for operating the knives,and reciprocating plungers above and reciprocating plungers below themold-box, adapted to compress between them the blocks in the severalcompartments of the mold, means for operating the plungers, thefinishing-die, and a feeding device to feed a bar of material into eachlong compartment, substantially as set forth.

13. In a press for making bricks or similar articles, the combination ofthe mold-box 3S, consisting of the side pieces 39, the middle partition40, and the end piece L1-1, the knives 4t2, adapted to slide in groovesin the side pieces and middle partition, the bars t3 connecting andsupporting the knives, the piston-rods 4:5, the pistons 46, thecylinders 47,

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articles, the combination of a suitable moldbox, and a plunger forcompressing the material, provided with a die 26, having perforations29, a illing-block 27, having a recess 30 into which the perforationsop'en, and the flange-plate 28, substantially as set forth.

15. In a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, reciprocatin g plun gers for com pressingbetween them the blocks in the several compartments of the mold-box,each plu ngerbeing provided with a recess in its middle portion and withperforations leading into the recess from the face of the plunger, and afeeding device to feed a bar of material into each long compartment,substantially as set forth.

1G. In a press for making bricks or similar articles, the combination ofthe mold-box 88, consisting of the side pieces 39, the middle partition40, and the end piece t1, the knives 42, adapted to slide in grooves inthe side pieces and middle partition, means for operating the knives,the reciprocating plungers provided with the dies 26 having perforations29, the filling-blocks 27, each having a recess into which theperforations open, and the flange-plates 28, means for operating theplungers, the finishing-die 37, and a feeding'device to feed a bar ofmaterial into each long compartment, substantially as set forth.

17. In a press for molding bricks or similar articles, the combinationof a mold-box, reciprocatin g plungers on opposite sides of the mold-boxfor compressing between them the block in the mold-box, a delivery-frameon the discharge side of the mold-box through which the lower one of theplungers is adapted to pass and into which the block is pushed from themold-box by the action of the plungers, and means for moving thedeliveryframe so as to carry the block away from the mold-box to thepoint of discharge from the the mold-box and the delivery-frame to nishoff the block while it is passing from the moldboX to thedelivery-frame.

19. In a press for molding bricks or similar articles,the combination ofa mold-box, means for compressing the material in the mold-box, adelivery-frame on the under side of the mold-box into which the blockpasses from the mold-box, a receiving-table, and means for moving thedelivery-frame so as to carry the block away from the mold-box and ontothe receiving-table and means for raising and lowering thereceiving-table.

20. In a press for molding bricks orsimilar articles, the combination ofa mold-box, reciprocating plungers for compressing between them theblock in the mold-box, a deliveryframe on the under side of the mold-boxthrough which one of the plungers is adapted to pass and into'which theblock is pushed from the mold-box by the action of the plungers, areceiving-table, and means for moving the delivery-frame so as to carrythe block away from the mold-box and onto the receiving-table and meansfor raising and lowering the receiving-table.

21. In a press for molding bricks or similar articles, the combinationof a mold-box, reciprocating plungers for compressing between them theblock in the mold-box, a deliveryframe on the under side of the mold-boxthrough which one of the plungers is adapted to pass and into which theblock is pushed from the mold-box by the action of the plungers, areceiving-table, and means for moving the delivery-frame so as to carrythe block away from the mold-box and onto the receiving-table and meansfor raising and lowering the receiving-table, and a finishing-diebetween the mold-box and the delivery-frame to iinish off the blockwhile it is passing from the mold-box to the delivery-frame.

22. In a press for molding bricks or similar articles, the combinationof a mold-box, reciprocating plungers for compressing between them theblock in the mold-box, a deliveryframe on the discharge side of themold-box through which one of the plungers is adapted to pass and intowhich the block is pushed from the mold-box by the action of theplungers, a lubricating-roller mounted in the deliveryframe and ot adiameter substantially equal to the distance between the plungers whenthe delivery-frame is moved, and means for moving the delivery-frame soas to carry the block away from the mold-box to the point of dischargefrom the delivery-frame and at the same time to cause thelubricating-roller to lubricate the faces of the plungers, substantially as set forth.

23. In a press for molding bricks or similar IOC) IIO

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articles, the combination of a mold-box havy ing the shape of thearticle to be formed, a reciprocating knife adapted to cut offa block ofthe material and to form one side of the mold-box, reciprocatingplungers for compressing betwecn them the material in t-he mold-box, anda feeding device to feed a bar of material into the mold-box, adeliveryframe on the discharge side of ihe'mold-box through which one ofthe plungers is adapted to pass and into which the block is pushed fromthe moldbox by the action of the plungers, and means for moving thedeliveryframe so as to carry the block away from the mold-box to thepoint of discharge from the c'lelivery-frame.

24:. In a press for molding bricks or similar articles, the combinationof a mold-box having the shape of the article to be formed, areciprocating knife adapted to cut off a block of the material and toform one side of the mold-box, reciprocating plungers for compressingbetween them the material in the mold-box, and a feeding device to feeda bar of material into the mold-box, a deliveryframe on the under sideof the mold-box through which one of the plungers is adapted to pass andinto which the block is pushed from the mold-box by the action of theplungers, a receiving-table, and means for moving the delivery-frame soas to carry the block away from the mold-box and onto thereceiving-table and means for raising and lowering the receiving-table.

25. In a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in eachlongcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, reciprocatin g plu n gers for compressingbetween them the blocks in the several compartments of the mold-box, adelivery-frame under the mold-box having the same number of compartmentsas the mold-box and adapted to register therewith, through which thelower plungers are adapted to pass and into which the blocks are pushedfrom the mold-box by the action of the plungers, and means for movingthe delivery-frame so as to carry the blocks away from the mold-box tothe point of discharge from the delivery-frame, substantially as setforth.

2G. In a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, reciprocating plungers for compressing betweenthem the blocks in the severalcompartments of the mold-box, adelivery-frame under the mold-box having the same number of compartmentsas the mold-box and adapted to register therewith, through which thelower plungers are adapted to pass and into which the blocks are pushedfrom the mold-box by the action of the plungers, a receiving-table, andmeans for moving the delivery-frame so as to carry the blocks away fromthe mold-box and onto the receiving-table and means for raising andlowering the receiving-table, substantially as set forth.

27. In a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, reciprocating plungers for compressing betweenthem the blocks in the several compartments of the mold-box, adelivery-frame under the mold-box having the same number of compartmentsas the mold-box and adapted to register therewith, through which thelower plungers are adapted to pass and into which the blocks are pushedfrom the mold-box by the action of the plungers, a receiving-table, andmeans for moving the delivery-frame so as to carry the blocks away fromthe mold-box and onto the receiving-table and means for raising andlowering the receiving-table, and a feeding device to feed a barofmaterial into each long compartment of the mold-box, substantially asset forth.

28. In a press for molding` bricks or similar articles, the combinationof a mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in each longcompartment in to a plurality of blocks, and to form one side of each ofthe smaller compartments, reciprocating plungers for compressing betweenthem the blocks in the several compartments of the mold-box, adelivery-frame under the mold-box having the same number of compartmentsas the mold-box and adapted to register therewith, through which thelower plungers are adapted to pass and into which the blocks are pushedfrom the mold-box by the action of the plungers, a lubricating-rollermounted in the delivery-frame and of a diameter substantially equal tothe distance between the plungers when the delivery-frame is moved, areceiving-table, and means for moving the delivery-frame so as to carrythe blocks away from the mold-box and onto the receiving-table and atthe same time to cause the lubricating-roller to lubricate the faces ofthe plungers, and means for raising and lowering the receiving-table,and a feeding device to feed a bar of material into each longcompartment of the mold-box, substantially as set forth.

29. In a press for molding bricks or similar articles, the combinationof a feed-cylinder, a plunger in said cylinder, the forming-die 11,having a plurality of openings, the regulating-block 14, consisting ofthe cross-bar l5 and the depending portions 16, and means for adjustingthe regulating-block, substantially as set forth.

80. In a press for molding bricks or similar articles, the combinationof a feed-cylinder provided with a hopper and a plunger of such a lengththat when it is in its forward position it extends backward beyond theopening IOC IOS

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from the hopper into the cylinder so as to cut off that opening, theforming-die l1 having a plurality of openings, the regulating-block 14,consisting of the cross-bar l5 and the depending portions 16, and meansfor adjusting the regulating-block, substantially as set forth.

3l. In a press for molding bricks or similar articles, lthe combinationof a mold-box having a plurality of compartments each having the shapeof the article to be formed, one or more reciprocating knives, adaptedto cutoff as many blocks of material as there are compartments in themold-box and to form one side of each compartment, devices forcompressing the blocks in the mold-box, a feedcylinder, a plunger insaid cylinder, and a forming-die connected with said cylinder having asmany openings as there are compartments in the mold-box, in line withsaid compartments, substantially as set forth.

32. In a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of compartments each having the shapeof the article to be formed, one or more reciprocating knives, adaptedto cut off i as many blocks of material as there are compartments in themold-box and to form one side of each compartment, devices forcompressing the blocks in the mold-box, a feedcylinder, a plunger insaid cylinder, and a forming-die connected with said cylinder having asmany openings as there are compartments in the mold-box, in line withsaid compartments, and a regulating-block to regulate the size of saidopenings, and means for adjusting the regulating-block, substantially asset forth.

33. vIn a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, reciprocating plungers for compressing betweenthem the blocks in the several compartments of the mold-box, adelivery-frame under the mold-box having the same number of compartmentsas the mold-box and adapted to register therewith, through which thelowerl plungers are adapted to pass and into which the blocks are pushedfrom the mold-box -by the action of the plungers, a receiving-table, andmeans for moving the delivery-frame so as to carry the blocks away fromthe moldboX and onto the receiving-table and means for raising andlowering the receiving-table, a feed-cylinder provided with a hopper anda plunger of such a length that when it is in its forward position itextends backward beyond the opening from the hopper into the cylinder soas to cut off that opening, a formingdie connected with thefeed-cylinder and having as many openings as there are long compartmentsin the mold-box in line with said compartments, a regulating-block toregulate the size of the openings in the forming-die, and means foradjusting the regulating-block, substantially as set forth.

34. In a press for molding bricks or similar articles, the combinationof a mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in each longcompartment into a plurality of blocks, and to form one side of each ofthe smaller compartments, reciprocating plungers for compressing betweenthem the blocksin the several compartments of the mold-box, adelivery-frame under the mold-box having the same number of compartmentsas the mold-box and adapted to register therewith, through which thelower plungers are adapted to pass and into which the blocks are pushedfrom the mold-box by the action of the plungers, a lubricatingrollermounted in the delivery-frame and of a diameter substantially equal tothe distance between the plun gers when the delivery-frame is moved, areceiving-table, and means for moving the delivery-frame so as to carrythe blocks away from the mold-box and onto the receiving-table and meansfor raising and lowering the receiving-table, a feed-cylinder providedwith a hopper and aplunger' of such a length that when it is in itsforward position it extends backward beyond the opening from the hopperinto the cylinder so as to cut off that opening, a forming-die connectedwith the feed-cylinder and having as many openings as there are longcompartments in the mold-box in line with said compartments, aregulating-block to regulate the size of the openings in theforming-die, and means for adjusting the regulating-block, substantiallyas set forth.

35. In a press for molding bricks orsimilar articles, the combination ofa mold-box having a plurality of long compartments, a plurality ofreciprocating knives adapted to cut the bar of material in each longcompartment ICO IIO

into a plurality of blocks, and to form one side 'the blocks are pushedfrom the mold-box by the action of the plungers, a lubricatingrollermounted in the delivery-frame and of a diameter substantially equal tothe distance betweenthe plungers when the delivery-frame is moved, afinishing-die between the moldbox and thedelivery-frame adapted tofinish oif the blocks while they are passing from Athe mold-box to thedelivery-frame, a receiving-table, and means for moving thedelivery-frame so as to carry the blocks away from the mold-box and ontothe receivingtable and means for raisingand lowering thereceiving-table, a feed-cylinder provided with l the forming-die, andmeans for adjusting the a hopper and a plunger of such a'length thatregulating-block, substantially as set forth. when itis in its forwardposition it extends In testimony whereof I have signed my backwardbeyond the opening from the hopname to this specification in thepresence of 5 per into the cylinder so as to out oif that opentwosubscribing witnesses.

ing, a forming-die connected with the feedi cylinder and having as manyopenings as v EDWARD H CALLAVAY there are long compartments in themold-box NTitnesses: in line with saidoompartments, a regulating- EDWINSEGER, ro block to regulate the size of the openings in GEO. W'. UFELLS,Jr.

